The lake was constructed specifically to provide a clean water supply for the nearby RTB Bor mining and smelting complex.
Borsko jezero contains approximately 12 million cubic meters of water.
The lake sits at an altitude of approximately 438 meters above sea level.
The water is noted for its high transparency, which can reach depths of several meters under favorable conditions.
It is connected to the Brestovačka Banja spa, a site known for its historic thermal springs used since the Roman era.
Borsko jezero is an artificial accumulation lake located at the base of the Crni Vrh mountain in eastern Serbia. Created in 1959 by damming the Brestovačka, Marec, and Valja Žoni rivers, it serves primarily as a recreational hub for the surrounding mining region. The lake covers approximately 30 hectares with a maximum depth of 48 meters near the dam. The water temperature reaches up to 25°C in mid-summer, making it a popular destination for swimming and water sports. The shoreline features both developed concrete beaches and natural pebble coves. The lake is regularly stocked with various freshwater fish species including carp, catfish, and bream. Dense forests of oak, beech, and pine surround the water, providing hiking access to nearby trails. The area is integrated into the tourist infrastructure of the Bor municipality, which includes nearby spa facilities.
The view from the main concrete dam overlooking the entire length of the lake toward the Crni Vrh slopes.
Bring water shoes, as the lake bed can transition from smooth pebbles to rocky areas quickly.
The lake is most vibrant on weekends; visit during weekdays for significantly quieter beach access.
Pack insect repellent if planning to hike the forest trails surrounding the lake perimeter.
Avoid swimming near the dam wall or marked restricted industrial water intake areas.
Main recreational facilities and lifeguard services are concentrated in the summer season; winter visits are limited to nature walks.
Use designated waste bins to preserve water quality; noise restrictions are enforced near camping areas.
